As seen in Figure 2, the collector voltage
is as high as 532 V when input voltage is 265 VAC.
Digital Display Monitors: Collector Current, Collector Voltage
, Helix Current, Helix Voltage, Forward RF Power, Reflected RF Power, Filament Hours, Beam Hours
After the first base current is set, the collector voltage
is swept while the collector current is measured.
The collector voltage
of Q0-7 sets the maximum voltage at [V.
In class B operation, which is a special case of class C with a conduction angle of half a period, the collector voltage
waveform is pure sinusoidal and harmonics are present in the collector current only.
Figure 4 shows the collector voltage
and current waveforms.
However, the ESD protection circuitry limits the collector voltage
to approximately 12 V, which means [V.
Standard features include a built-in IEEE-488 (GPIB) inter-face, 0 dBm input for rated output, gain control, RF output sample port, VSWR protection for the TWT only (not required for the solid-state unit), plus monitoring of the TWT helix current, cathode voltage, collector voltage
, heater current, heater voltage, base-plate and cabinet temperature.